decompile ItemListMenu_ChangeDescription - sub_80A4F74

4 files changed, 273 insertions, 907 deletions

diff --git a/asm/item_menu.s b/asm/item_menu.s
index 7a9799fec..563c1b98e 100644
--- a/asm/item_menu.s
+++ b/asm/item_menu.s
@@ -6,908 +6,6 @@
 
 	.text
 
-	thumb_func_start ItemListMenu_ChangeDescription
-ItemListMenu_ChangeDescription: @ 80A49AC
-	push {r4,r5,lr}
-	sub sp, 0x64
-	adds r4, r1, 0
-	lsls r0, 16
-	lsrs r5, r0, 16
-	ldr r1, _080A49E8 @ =gUnknown_03005D10
-	ldr r0, _080A49EC @ =gUnknown_02038559
-	ldrb r0, [r0]
-	lsls r0, 24
-	asrs r0, 24
-	lsls r0, 2
-	adds r0, r1
-	ldrb r1, [r0, 0x1]
-	ldrb r2, [r0]
-	adds r1, r2
-	ldrb r0, [r0, 0x2]
-	cmp r1, r0
-	bne _080A4A18
-	cmp r4, 0
-	bne _080A49F4
-	movs r0, 0
-	movs r1, 0xD
-	movs r2, 0xD
-	movs r3, 0x14
-	bl MenuZeroFillWindowRect
-	ldr r0, _080A49F0 @ =gOtherText_ReturnTo
-	movs r1, 0x4
-	movs r2, 0x68
-	b _080A4A08
-	.align 2, 0
-_080A49E8: .4byte gUnknown_03005D10
-_080A49EC: .4byte gUnknown_02038559
-_080A49F0: .4byte gOtherText_ReturnTo
-_080A49F4:
-	cmp r4, 0x1
-	bne _080A4A4C
-	ldr r1, _080A4A10 @ =gUnknown_0840E740
-	ldr r0, _080A4A14 @ =gUnknown_03000701
-	ldrb r0, [r0]
-	lsls r0, 2
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0x4
-	movs r2, 0x78
-_080A4A08:
-	movs r3, 0
-	bl MenuPrint_PixelCoords
-	b _080A4A4C
-	.align 2, 0
-_080A4A10: .4byte gUnknown_0840E740
-_080A4A14: .4byte gUnknown_03000701
-_080A4A18:
-	cmp r4, 0
-	bne _080A4A28
-	movs r0, 0
-	movs r1, 0xD
-	movs r2, 0xD
-	movs r3, 0x14
-	bl MenuZeroFillWindowRect
-_080A4A28:
-	lsls r1, r5, 16
-	asrs r1, 16
-	mov r0, sp
-	adds r2, r4, 0
-	bl ItemId_CopyDescription
-	cmp r0, 0
-	beq _080A4A4C
-	lsls r2, r4, 20
-	movs r0, 0xD0
-	lsls r0, 15
-	adds r2, r0
-	lsrs r2, 16
-	mov r0, sp
-	movs r1, 0x4
-	movs r3, 0
-	bl MenuPrint_PixelCoords
-_080A4A4C:
-	add sp, 0x64
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end ItemListMenu_ChangeDescription
-
-	thumb_func_start sub_80A4A54
-sub_80A4A54: @ 80A4A54
-	push {r4,r5,lr}
-	adds r5, r0, 0
-	adds r4, r2, 0x1
-	adds r2, r1, 0
-	adds r1, r5, 0
-_080A4A5E:
-	ldrb r3, [r2]
-	adds r0, r3, 0x2
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bhi _080A4A8A
-	subs r4, 0x1
-	cmp r4, 0
-	bne _080A4A78
-	movs r0, 0xFF
-	strb r0, [r1]
-	movs r0, 0x1
-	b _080A4A92
-_080A4A78:
-	lsls r0, r3, 24
-	lsrs r0, 24
-	cmp r0, 0xFF
-	bne _080A4A84
-	movs r0, 0
-	b _080A4A92
-_080A4A84:
-	adds r1, r5, 0
-	adds r2, 0x1
-	b _080A4A5E
-_080A4A8A:
-	strb r3, [r1]
-	adds r2, 0x1
-	adds r1, 0x1
-	b _080A4A5E
-_080A4A92:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80A4A54
-
-	thumb_func_start sub_80A4A98
-sub_80A4A98: @ 80A4A98
-	push {r4,r5,lr}
-	sub sp, 0x64
-	adds r5, r0, 0
-	adds r4, r1, 0
-	cmp r4, 0
-	bne _080A4AB0
-	movs r0, 0
-	movs r1, 0xD
-	movs r2, 0xD
-	movs r3, 0x14
-	bl MenuZeroFillWindowRect
-_080A4AB0:
-	mov r0, sp
-	adds r1, r5, 0
-	adds r2, r4, 0
-	bl sub_80A4A54
-	cmp r0, 0
-	beq _080A4AD2
-	lsls r2, r4, 20
-	movs r0, 0xD0
-	lsls r0, 15
-	adds r2, r0
-	lsrs r2, 16
-	mov r0, sp
-	movs r1, 0x4
-	movs r3, 0
-	bl MenuPrint_PixelCoords
-_080A4AD2:
-	add sp, 0x64
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80A4A98
-
-	thumb_func_start sub_80A4ADC
-sub_80A4ADC: @ 80A4ADC
-	push {lr}
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, _080A4B0C @ =gTasks
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	adds r1, r2
-	movs r2, 0x1C
-	ldrsh r0, [r1, r2]
-	cmp r0, 0
-	bne _080A4AFA
-	movs r0, 0
-	bl sub_80A7528
-_080A4AFA:
-	movs r0, 0x5
-	bl PlaySE
-	ldr r1, _080A4B10 @ =gUnknown_0203855C
-	movs r0, 0x1
-	strb r0, [r1]
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A4B0C: .4byte gTasks
-_080A4B10: .4byte gUnknown_0203855C
-	thumb_func_end sub_80A4ADC
-
-	thumb_func_start sub_80A4B14
-sub_80A4B14: @ 80A4B14
-	push {r4,lr}
-	adds r4, r1, 0
-	lsls r0, 24
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r2, _080A4B50 @ =gUnknown_03005D10
-	ldr r1, _080A4B54 @ =gUnknown_02038559
-	ldrb r1, [r1]
-	lsls r1, 24
-	asrs r1, 24
-	lsls r1, 2
-	adds r1, r2
-	lsrs r0, 24
-	ldrb r2, [r1, 0x1]
-	adds r0, r2
-	strb r0, [r1, 0x1]
-	movs r0, 0
-	bl MoveMenuCursor
-	bl sub_80A73C0
-	bl sub_80A763C
-	adds r0, r4, 0
-	bl sub_80A4ADC
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A4B50: .4byte gUnknown_03005D10
-_080A4B54: .4byte gUnknown_02038559
-	thumb_func_end sub_80A4B14
-
-	thumb_func_start sub_80A4B58
-sub_80A4B58: @ 80A4B58
-	push {r4,lr}
-	adds r4, r1, 0
-	lsls r4, 24
-	lsrs r4, 24
-	lsls r0, 24
-	asrs r0, 24
-	bl MoveMenuCursor
-	ldr r2, _080A4B88 @ =gUnknown_03005D10
-	ldr r1, _080A4B8C @ =gUnknown_02038559
-	ldrb r1, [r1]
-	lsls r1, 24
-	asrs r1, 24
-	lsls r1, 2
-	adds r1, r2
-	strb r0, [r1]
-	bl sub_80A73C0
-	adds r0, r4, 0
-	bl sub_80A4ADC
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A4B88: .4byte gUnknown_03005D10
-_080A4B8C: .4byte gUnknown_02038559
-	thumb_func_end sub_80A4B58
-
-	thumb_func_start sub_80A4B90
-sub_80A4B90: @ 80A4B90
-	push {r4,lr}
-	lsls r0, 16
-	lsrs r4, r0, 16
-	movs r0, 0x6
-	bl TestPlayerAvatarFlags
-	lsls r0, 24
-	cmp r0, 0
-	beq _080A4BBC
-	ldr r0, _080A4BB4 @ =0x00000103
-	cmp r4, r0
-	beq _080A4BAE
-	adds r0, 0xD
-	cmp r4, r0
-	bne _080A4BBC
-_080A4BAE:
-	ldr r0, _080A4BB8 @ =gOtherText_Walk
-	b _080A4BE6
-	.align 2, 0
-_080A4BB4: .4byte 0x00000103
-_080A4BB8: .4byte gOtherText_Walk
-_080A4BBC:
-	adds r0, r4, 0
-	bl ItemIsMail
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080A4BE4
-	ldr r1, _080A4BDC @ =gUnknown_083C1640
-	ldr r0, _080A4BE0 @ =gUnknown_03000704
-	ldr r0, [r0]
-	ldrb r0, [r0]
-	lsls r0, 3
-	adds r0, r1
-	ldr r0, [r0]
-	b _080A4BE6
-	.align 2, 0
-_080A4BDC: .4byte gUnknown_083C1640
-_080A4BE0: .4byte gUnknown_03000704
-_080A4BE4:
-	ldr r0, _080A4BEC @ =gOtherText_Check
-_080A4BE6:
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080A4BEC: .4byte gOtherText_Check
-	thumb_func_end sub_80A4B90
-
-	thumb_func_start sub_80A4BF0
-sub_80A4BF0: @ 80A4BF0
-	push {r4-r7,lr}
-	sub sp, 0x8
-	adds r5, r0, 0
-	ldr r7, _080A4C38 @ =gUnknown_02038564
-	ldrb r4, [r7]
-	cmp r4, 0x4
-	beq _080A4C00
-	b _080A4CF8
-_080A4C00:
-	movs r0, 0
-	movs r1, 0x7
-	movs r2, 0xD
-	movs r3, 0xC
-	bl MenuDrawTextWindow
-	str r4, [sp]
-	adds r0, r5, 0
-	movs r1, 0x1
-	movs r2, 0x8
-	movs r3, 0xC
-	bl sub_80A4008
-	bl sub_80F9344
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080A4C40
-	ldr r0, _080A4C3C @ =gUnknown_03000701
-	ldrb r0, [r0]
-	cmp r0, 0x5
-	bne _080A4C40
-	movs r0, 0x1
-	movs r1, 0
-	bl sub_80A7834
-	b _080A4CA0
-	.align 2, 0
-_080A4C38: .4byte gUnknown_02038564
-_080A4C3C: .4byte gUnknown_03000701
-_080A4C40:
-	movs r6, 0
-	ldr r0, _080A4C5C @ =gUnknown_02038564
-	ldrb r0, [r0]
-	cmp r6, r0
-	bcs _080A4CA0
-	ldr r4, _080A4C60 @ =gUnknown_083C1640
-_080A4C4C:
-	cmp r6, 0
-	bne _080A4C68
-	ldr r0, _080A4C64 @ =gScriptItemId
-	ldrh r0, [r0]
-	bl sub_80A4B90
-	adds r3, r0, 0
-	b _080A4C76
-	.align 2, 0
-_080A4C5C: .4byte gUnknown_02038564
-_080A4C60: .4byte gUnknown_083C1640
-_080A4C64: .4byte gScriptItemId
-_080A4C68:
-	ldr r0, _080A4CC4 @ =gUnknown_03000704
-	ldr r0, [r0]
-	adds r0, r6
-	ldrb r0, [r0]
-	lsls r0, 3
-	adds r0, r4
-	ldr r3, [r0]
-_080A4C76:
-	lsrs r0, r6, 1
-	lsls r1, r0, 1
-	adds r1, r0
-	lsls r1, 1
-	adds r1, 0x1
-	lsls r1, 24
-	lsrs r1, 24
-	movs r2, 0x1
-	ands r2, r6
-	lsls r2, 1
-	adds r2, 0x8
-	adds r0, r3, 0
-	bl MenuPrint
-	adds r0, r6, 0x1
-	lsls r0, 24
-	lsrs r6, r0, 24
-	ldr r0, _080A4CC8 @ =gUnknown_02038564
-	ldrb r0, [r0]
-	cmp r6, r0
-	bcc _080A4C4C
-_080A4CA0:
-	ldr r0, _080A4CCC @ =gUnknown_03000701
-	ldrb r0, [r0]
-	cmp r0, 0x5
-	bne _080A4CD4
-	ldr r0, _080A4CC8 @ =gUnknown_02038564
-	ldrb r3, [r0]
-	ldr r0, _080A4CD0 @ =gUnknown_03000700
-	ldrb r0, [r0]
-	str r0, [sp]
-	movs r0, 0x1
-	str r0, [sp, 0x4]
-	movs r0, 0
-	movs r1, 0x1
-	movs r2, 0x8
-	bl InitMenu
-	b _080A4CEA
-	.align 2, 0
-_080A4CC4: .4byte gUnknown_03000704
-_080A4CC8: .4byte gUnknown_02038564
-_080A4CCC: .4byte gUnknown_03000701
-_080A4CD0: .4byte gUnknown_03000700
-_080A4CD4:
-	ldr r0, _080A4CF4 @ =gUnknown_02038564
-	ldrb r3, [r0]
-	movs r0, 0
-	str r0, [sp]
-	movs r0, 0x1
-	str r0, [sp, 0x4]
-	movs r0, 0
-	movs r1, 0x1
-	movs r2, 0x8
-	bl InitMenu
-_080A4CEA:
-	movs r0, 0x2F
-	bl sub_8072DCC
-	b _080A4D8A
-	.align 2, 0
-_080A4CF4: .4byte gUnknown_02038564
-_080A4CF8:
-	movs r0, 0
-	movs r1, 0x5
-	movs r2, 0xD
-	movs r3, 0xC
-	bl MenuDrawTextWindow
-	movs r0, 0x6
-	str r0, [sp]
-	adds r0, r5, 0
-	movs r1, 0x1
-	movs r2, 0x6
-	movs r3, 0xC
-	bl sub_80A4008
-	movs r6, 0
-	ldrb r7, [r7]
-	cmp r6, r7
-	bcs _080A4D6E
-	ldr r7, _080A4D98 @ =gUnknown_083C1640
-_080A4D1E:
-	ldr r0, _080A4D9C @ =gUnknown_03000704
-	ldr r0, [r0]
-	adds r0, r6
-	ldrb r0, [r0]
-	lsls r0, 3
-	adds r0, r7
-	ldr r5, [r0]
-	adds r0, r6, 0
-	movs r1, 0x3
-	bl __udivsi3
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r4, r0, 1
-	adds r4, r0
-	lsls r4, 1
-	adds r4, 0x1
-	lsls r4, 24
-	lsrs r4, 24
-	adds r0, r6, 0
-	movs r1, 0x3
-	bl __umodsi3
-	adds r2, r0, 0
-	lsls r2, 25
-	movs r0, 0xC0
-	lsls r0, 19
-	adds r2, r0
-	lsrs r2, 24
-	adds r0, r5, 0
-	adds r1, r4, 0
-	bl MenuPrint
-	adds r0, r6, 0x1
-	lsls r0, 24
-	lsrs r6, r0, 24
-	ldr r0, _080A4DA0 @ =gUnknown_02038564
-	ldrb r0, [r0]
-	cmp r6, r0
-	bcc _080A4D1E
-_080A4D6E:
-	ldr r0, _080A4DA0 @ =gUnknown_02038564
-	ldrb r3, [r0]
-	movs r0, 0
-	str r0, [sp]
-	movs r0, 0x1
-	str r0, [sp, 0x4]
-	movs r0, 0
-	movs r1, 0x1
-	movs r2, 0x6
-	bl InitMenu
-	movs r0, 0x2F
-	bl sub_8072DCC
-_080A4D8A:
-	movs r0, 0x2
-	bl sub_80A7528
-	add sp, 0x8
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A4D98: .4byte gUnknown_083C1640
-_080A4D9C: .4byte gUnknown_03000704
-_080A4DA0: .4byte gUnknown_02038564
-	thumb_func_end sub_80A4BF0
-
-	thumb_func_start sub_80A4DA4
-sub_80A4DA4: @ 80A4DA4
-	push {r4,lr}
-	sub sp, 0x4
-	adds r4, r0, 0
-	bl sub_80A73FC
-	movs r0, 0x6
-	str r0, [sp]
-	adds r0, r4, 0
-	movs r1, 0
-	movs r2, 0x6
-	movs r3, 0xD
-	bl sub_80A36B8
-	movs r0, 0
-	movs r1, 0x5
-	movs r2, 0xD
-	movs r3, 0xC
-	bl MenuZeroFillWindowRect
-	bl sub_80A7590
-	add sp, 0x4
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80A4DA4
-
-	thumb_func_start sub_80A4DD8
-sub_80A4DD8: @ 80A4DD8
-	push {r4-r6,lr}
-	mov r6, r10
-	mov r5, r9
-	mov r4, r8
-	push {r4-r6}
-	sub sp, 0x4
-	adds r4, r1, 0
-	adds r1, r2, 0
-	adds r6, r3, 0
-	ldr r5, [sp, 0x20]
-	ldr r2, [sp, 0x24]
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r4, 24
-	lsrs r4, 24
-	lsls r1, 24
-	lsrs r1, 24
-	lsls r6, 24
-	lsrs r6, 24
-	lsls r5, 24
-	lsrs r5, 24
-	lsls r2, 24
-	lsrs r2, 24
-	mov r10, r2
-	ldr r3, _080A4E84 @ =gTasks
-	lsls r2, r0, 2
-	adds r2, r0
-	lsls r2, 3
-	adds r2, r3
-	movs r0, 0x1
-	strh r0, [r2, 0xA]
-	adds r0, r4, 0x2
-	mov r9, r0
-	strh r0, [r2, 0xC]
-	adds r0, r1, 0x1
-	mov r8, r0
-	strh r0, [r2, 0xE]
-	adds r2, r4, r6
-	lsls r2, 24
-	lsrs r2, 24
-	adds r3, r1, r5
-	lsls r3, 24
-	lsrs r3, 24
-	adds r0, r4, 0
-	bl MenuDrawTextWindow
-	ldr r0, _080A4E88 @ =gBGTilemapBuffers + 0x800
-	adds r4, 0x1
-	lsls r4, 24
-	lsrs r4, 24
-	mov r1, r8
-	lsls r1, 24
-	lsrs r1, 24
-	mov r8, r1
-	subs r6, 0x1
-	lsls r6, 24
-	lsrs r6, 24
-	subs r5, 0x1
-	lsls r5, 24
-	lsrs r5, 24
-	str r5, [sp]
-	adds r1, r4, 0
-	mov r2, r8
-	adds r3, r6, 0
-	bl sub_80A4008
-	mov r2, r9
-	lsls r2, 24
-	lsrs r2, 24
-	mov r9, r2
-	mov r0, r10
-	str r0, [sp]
-	movs r0, 0x1
-	movs r1, 0x1
-	mov r3, r8
-	bl sub_80A418C
-	add sp, 0x4
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A4E84: .4byte gTasks
-_080A4E88: .4byte gBGTilemapBuffers + 0x800
-	thumb_func_end sub_80A4DD8
-
-	thumb_func_start sub_80A4E8C
-sub_80A4E8C: @ 80A4E8C
-	push {r4-r6,lr}
-	adds r4, r0, 0
-	adds r6, r1, 0
-	lsls r4, 24
-	lsrs r4, 24
-	lsls r6, 24
-	lsrs r6, 24
-	movs r0, 0x5
-	bl PlaySE
-	movs r0, 0
-	movs r1, 0x1
-	bl sub_80F979C
-	movs r0, 0x1
-	movs r1, 0x1
-	bl sub_80F979C
-	movs r0, 0x2
-	movs r1, 0x1
-	bl sub_80F979C
-	movs r0, 0x3
-	movs r1, 0x1
-	bl sub_80F979C
-	movs r0, 0
-	bl PauseVerticalScrollIndicator
-	movs r0, 0x1
-	bl PauseVerticalScrollIndicator
-	movs r0, 0x2
-	bl PauseVerticalScrollIndicator
-	movs r0, 0x3
-	bl PauseVerticalScrollIndicator
-	ldr r5, _080A4F04 @ =gBGTilemapBuffers + 0x1000
-	lsls r4, 24
-	asrs r4, 24
-	adds r0, r5, 0
-	adds r1, r4, 0
-	bl sub_80A3B04
-	ldr r0, _080A4F08 @ =gUnknown_02038559
-	ldrb r1, [r0]
-	adds r0, r5, 0
-	bl sub_80A3AC0
-	bl sub_80A3770
-	bl sub_80A7C64
-	adds r0, r6, 0
-	bl CreateBagPokeballSprite
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A4F04: .4byte gBGTilemapBuffers + 0x1000
-_080A4F08: .4byte gUnknown_02038559
-	thumb_func_end sub_80A4E8C
-
-	thumb_func_start sub_80A4F0C
-sub_80A4F0C: @ 80A4F0C
-	push {r4,lr}
-	ldr r0, _080A4F38 @ =gUnknown_03000701
-	ldrb r0, [r0]
-	subs r0, 0x4
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bls _080A4F60
-	ldr r4, _080A4F3C @ =gMain
-	ldrh r0, [r4, 0x2E]
-	cmp r0, 0x10
-	beq _080A4F30
-	bl sub_80F9284
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x2
-	bne _080A4F40
-_080A4F30:
-	movs r0, 0x1
-	movs r1, 0x2
-	b _080A4F58
-	.align 2, 0
-_080A4F38: .4byte gUnknown_03000701
-_080A4F3C: .4byte gMain
-_080A4F40:
-	ldrh r0, [r4, 0x2E]
-	cmp r0, 0x20
-	beq _080A4F52
-	bl sub_80F9284
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080A4F60
-_080A4F52:
-	movs r0, 0x1
-	negs r0, r0
-	movs r1, 0x1
-_080A4F58:
-	bl sub_80A4E8C
-	movs r0, 0x1
-	b _080A4F62
-_080A4F60:
-	movs r0, 0
-_080A4F62:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80A4F0C
-
-	thumb_func_start sub_80A4F68
-sub_80A4F68: @ 80A4F68
-	push {lr}
-	bl sub_80A4F0C
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80A4F68
-
-	thumb_func_start sub_80A4F74
-sub_80A4F74: @ 80A4F74
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	adds r2, r4, 0
-	movs r5, 0
-	ldr r0, _080A4FAC @ =gMain
-	ldrh r0, [r0, 0x30]
-	movs r1, 0xF0
-	ands r1, r0
-	cmp r1, 0x40
-	bne _080A4FE8
-	ldr r1, _080A4FB0 @ =gUnknown_03005D10
-	ldr r0, _080A4FB4 @ =gUnknown_02038559
-	ldrb r0, [r0]
-	lsls r0, 24
-	asrs r0, 24
-	lsls r0, 2
-	adds r1, r0, r1
-	ldrb r0, [r1]
-	cmp r0, 0
-	beq _080A4FB8
-	movs r0, 0x1
-	negs r0, r0
-	adds r1, r4, 0
-	bl sub_80A4B58
-	b _080A4FC8
-	.align 2, 0
-_080A4FAC: .4byte gMain
-_080A4FB0: .4byte gUnknown_03005D10
-_080A4FB4: .4byte gUnknown_02038559
-_080A4FB8:
-	ldrb r0, [r1, 0x1]
-	cmp r0, 0
-	beq _080A4FC8
-	movs r0, 0x1
-	negs r0, r0
-	adds r1, r4, 0
-	bl sub_80A4B14
-_080A4FC8:
-	ldr r0, _080A4FE0 @ =gLinkOpen
-	ldrb r0, [r0]
-	cmp r0, 0x1
-	bne _080A50AE
-	ldr r1, _080A4FE4 @ =gMain
-	ldrh r0, [r1, 0x32]
-	cmp r0, 0x5
-	bne _080A50AE
-	movs r0, 0xB
-	strh r0, [r1, 0x32]
-	b _080A50AE
-	.align 2, 0
-_080A4FE0: .4byte gLinkOpen
-_080A4FE4: .4byte gMain
-_080A4FE8:
-	cmp r1, 0x80
-	bne _080A5088
-	ldr r0, _080A5020 @ =gUnknown_03000701
-	ldrb r0, [r0]
-	cmp r0, 0x5
-	beq _080A502C
-	ldr r1, _080A5024 @ =gUnknown_03005D10
-	ldr r0, _080A5028 @ =gUnknown_02038559
-	ldrb r0, [r0]
-	lsls r0, 24
-	asrs r0, 24
-	lsls r0, 2
-	adds r2, r0, r1
-	ldrb r0, [r2]
-	ldrb r1, [r2, 0x3]
-	cmp r0, r1
-	bne _080A504E
-	ldrb r0, [r2, 0x1]
-	ldrb r1, [r2]
-	adds r0, r1
-	ldrb r2, [r2, 0x2]
-	cmp r0, r2
-	beq _080A5068
-	movs r0, 0x1
-	adds r1, r4, 0
-	bl sub_80A4B14
-	b _080A5068
-	.align 2, 0
-_080A5020: .4byte gUnknown_03000701
-_080A5024: .4byte gUnknown_03005D10
-_080A5028: .4byte gUnknown_02038559
-_080A502C:
-	ldr r1, _080A5058 @ =gUnknown_03005D10
-	ldr r0, _080A505C @ =gUnknown_02038559
-	ldrb r0, [r0]
-	lsls r0, 24
-	asrs r0, 24
-	lsls r0, 2
-	adds r2, r0, r1
-	ldrb r1, [r2, 0x1]
-	ldrb r3, [r2]
-	adds r1, r3
-	ldrb r0, [r2, 0x2]
-	subs r0, 0x1
-	cmp r1, r0
-	beq _080A5068
-	ldrb r2, [r2, 0x3]
-	cmp r3, r2
-	beq _080A5060
-_080A504E:
-	movs r0, 0x1
-	adds r1, r4, 0
-	bl sub_80A4B58
-	b _080A5068
-	.align 2, 0
-_080A5058: .4byte gUnknown_03005D10
-_080A505C: .4byte gUnknown_02038559
-_080A5060:
-	movs r0, 0x1
-	adds r1, r4, 0
-	bl sub_80A4B14
-_080A5068:
-	movs r5, 0x1
-	ldr r0, _080A5080 @ =gLinkOpen
-	ldrb r0, [r0]
-	cmp r0, 0x1
-	bne _080A50C0
-	ldr r1, _080A5084 @ =gMain
-	ldrh r0, [r1, 0x32]
-	cmp r0, 0x5
-	bne _080A50C0
-	movs r0, 0xB
-	strh r0, [r1, 0x32]
-	b _080A50C0
-	.align 2, 0
-_080A5080: .4byte gLinkOpen
-_080A5084: .4byte gMain
-_080A5088:
-	ldr r0, _080A50B4 @ =gTasks
-	lsls r1, r2, 2
-	adds r1, r2
-	lsls r1, 3
-	adds r4, r1, r0
-	movs r1, 0x1C
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	bne _080A50BC
-	bl sub_80A4F0C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080A50BC
-	bl sub_80A73F0
-	ldr r0, _080A50B8 @ =sub_80A4F68
-	str r0, [r4]
-_080A50AE:
-	movs r5, 0x1
-	b _080A50C0
-	.align 2, 0
-_080A50B4: .4byte gTasks
-_080A50B8: .4byte sub_80A4F68
-_080A50BC:
-	bl sub_80A73C0
-_080A50C0:
-	adds r0, r5, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80A4F74
-
 	thumb_func_start sub_80A50C8
 sub_80A50C8: @ 80A50C8
 	push {r4-r7,lr}
diff --git a/include/item.h b/include/item.h
index 54a252302..80a460caa 100644
--- a/include/item.h
+++ b/include/item.h
@@ -51,7 +51,7 @@ u16 ItemId_GetPrice(u16 itemId);
 u8 ItemId_GetHoldEffect(u16 itemId);
 u8 ItemId_GetHoldEffectParam(u16 itemId);
 u8 *ItemId_GetDescription(u16 itemId);
-bool8 ItemId_CopyDescription(u8 *a, u32 itemId, u32 c);
+bool32 ItemId_CopyDescription(u8 *a, u32 itemId, u32 c);
 u8 ItemId_GetImportance(u16 itemId);
 u8 ItemId_GetUnknownValue(u16 itemId);
 u8 ItemId_GetPocket(u16 itemId);
diff --git a/src/item.c b/src/item.c
index 6070a0329..22ac6e7cd 100644
--- a/src/item.c
+++ b/src/item.c
@@ -587,7 +587,7 @@ u8 *ItemId_GetDescription(u16 itemId)
     return gItems[SanitizeItemId(itemId)].description;
 }
 
-bool8 ItemId_CopyDescription(u8 *a, u32 itemId, u32 c)
+bool32 ItemId_CopyDescription(u8 *a, u32 itemId, u32 c)
 {
     u32 r5 = c + 1;
     u8 *description = gItems[SanitizeItemId(itemId)].description;
diff --git a/src/item_menu.c b/src/item_menu.c
index b8d9f788a..972a2c748 100644
--- a/src/item_menu.c
+++ b/src/item_menu.c
@@ -1,8 +1,12 @@
 #include "global.h"
 #include "data2.h"
 #include "decompress.h"
+#include "field_player_avatar.h"
 #include "graphics.h"
 #include "item.h"
+#include "items.h"
+#include "item_use.h"
+#include "mail_data.h"
 #include "main.h"
 #include "menu.h"
 #include "menu_helpers.h"
@@ -48,6 +52,8 @@ extern void gpu_pal_allocator_reset__manage_upper_four(void);
 extern void sub_80F9020(void);
 extern void sub_80F9988();
 extern void sub_809D104(u16 *, u16, u16, const u8 *, u16, u16, u16, u16);
+extern void PauseVerticalScrollIndicator();
+extern u8 sub_80F9284(void);
 
 extern const struct CompressedSpriteSheet gUnknown_083C1CC8;
 extern const struct CompressedSpriteSheet gUnknown_083C1CD0;
@@ -114,10 +120,13 @@ void sub_80A3D40(void);
 void sub_80A40D0(void);
 void sub_80A48E8(u16, int, int);
 void ItemListMenu_InitDescription(s16);
-void ItemListMenu_ChangeDescription();
+void ItemListMenu_ChangeDescription(s16, int);
 void sub_80A4F68(u8);
 void sub_80A50C8(u8);
 void ItemListMenu_InitMenu(void);
+void sub_80A73C0(void);
+void sub_80A73F0(void);
+void sub_80A73FC(void);
 void sub_80A740C(void);
 void sub_80A751C(void);
 void sub_80A7528();
@@ -127,9 +136,11 @@ void sub_80A763C(void);
 void sub_80A76A0(void);
 void sub_80A770C(void);
 void sub_80A7828(void);
+void sub_80A7834();
 void sub_80A78B8(void);
 void CreateBagSprite(void);
 void CreateBagPokeballSprite();
+void sub_80A7C64(void);
 
 void sub_80A3118(void)
 {
@@ -460,7 +471,7 @@ void sub_80A37F8(u8 taskId)
     {
         u32 val = gUnknown_03005D10[gUnknown_02038559].unk1 + gUnknown_03005D10[gUnknown_02038559].unk0;
 
-        ItemListMenu_ChangeDescription((s16)gUnknown_03005D24[val].itemId, gUnknown_02038562);
+        ItemListMenu_ChangeDescription(gUnknown_03005D24[val].itemId, gUnknown_02038562);
         gUnknown_02038562++;
     }
     else
@@ -469,7 +480,7 @@ void sub_80A37F8(u8 taskId)
         {
             u32 val = gUnknown_03005D10[gUnknown_02038559].unk1 + gUnknown_03005D10[gUnknown_02038559].unk0;
 
-            ItemListMenu_ChangeDescription((s16)gUnknown_03005D24[val].itemId, gUnknown_02038562);
+            ItemListMenu_ChangeDescription(gUnknown_03005D24[val].itemId, gUnknown_02038562);
             gUnknown_02038562++;
         }
     }
@@ -1315,3 +1326,260 @@ void ItemListMenu_InitDescription(s16 itemId)
     if (r5 < 3)
         MenuZeroFillWindowRect(0, 13 + r5 * 2, 13, 20);
 }
+
+void ItemListMenu_ChangeDescription(s16 itemId, int b)
+{
+    u8 description[100];
+    
+    if (gUnknown_03005D10[gUnknown_02038559].unk1 + gUnknown_03005D10[gUnknown_02038559].unk0 == gUnknown_03005D10[gUnknown_02038559].unk2)
+    {
+        if (b == 0)
+        {
+            MenuZeroFillWindowRect(0, 13, 13, 20);
+            MenuPrint_PixelCoords(gOtherText_ReturnTo, 4, 0x68, 0);
+        }
+        else if (b == 1)
+        {
+            MenuPrint_PixelCoords(gUnknown_0840E740[gUnknown_03000701], 4, 0x78, 0);
+        }
+    }
+    else
+    {
+        if (b == 0)
+            MenuZeroFillWindowRect(0, 13, 13, 20);
+        if (ItemId_CopyDescription(description, itemId, b))
+            MenuPrint_PixelCoords(description, 4, 104 + b * 16, 0);
+    }
+}
+
+bool32 sub_80A4A54(u8 *a, const u8 *b, u32 c)
+{
+    u32 r4 = c + 1;
+    const u8 *src = b;
+    u8 *dst = a;
+    
+    while (1)
+    {
+        if (*src == CHAR_NEWLINE || *src == EOS)
+        {
+            if (--r4 == 0)
+            {
+                *dst = EOS;
+                return TRUE;
+            }
+            if (*src == EOS)
+                return FALSE;
+            dst = a;
+            src++;
+        }
+        else
+        {
+            *dst++ = *src++;
+        }
+    }
+}
+
+void sub_80A4A98(u8 *a, u32 b)
+{
+    u8 text[100];
+    
+    if (b == 0)
+        MenuZeroFillWindowRect(0, 13, 13, 20);
+    if (sub_80A4A54(text, a, b))
+        MenuPrint_PixelCoords(text, 4, 104 + b * 16, 0);
+}
+
+void sub_80A4ADC(u8 taskId)
+{
+    if (gTasks[taskId].data[10] == 0)
+        sub_80A7528(0);
+    PlaySE(SE_SELECT);
+    gUnknown_0203855C = 1;
+}
+
+void sub_80A4B14(s8 a, u8 b)
+{
+    gUnknown_03005D10[gUnknown_02038559].unk1 += a;
+    MoveMenuCursor(0);
+    sub_80A73C0();
+    sub_80A763C();
+    sub_80A4ADC(b);
+}
+
+void sub_80A4B58(s8 a, u8 b)
+{
+    gUnknown_03005D10[gUnknown_02038559].unk0 = MoveMenuCursor(a);
+    sub_80A73C0();
+    sub_80A4ADC(b);
+}
+
+const u8 *sub_80A4B90(u16 itemId)
+{
+    if (TestPlayerAvatarFlags(6))
+    {
+        if (itemId == ITEM_MACH_BIKE || itemId == ITEM_ACRO_BIKE)
+            return gOtherText_Walk;
+    }
+    if (ItemIsMail(itemId) == TRUE)
+        return gOtherText_Check;
+    return gUnknown_083C1640[gUnknown_03000704[0]].text;
+}
+
+void sub_80A4BF0(u16 *a)
+{
+    u8 i;
+    
+    if (gUnknown_02038564 == 4)
+    {
+        MenuDrawTextWindow(0, 7, 13, 12);
+        sub_80A4008(a, 1, 8, 12, 4);
+        if (sub_80F9344() == 1 && gUnknown_03000701 == 5)
+        {
+            sub_80A7834(1, 0);
+        }
+        else
+        {
+            for (i = 0; i < gUnknown_02038564; i++)
+            {
+                const u8 *text;
+
+                if (i == 0)
+                    text = sub_80A4B90(gScriptItemId);
+                else
+                    text = gUnknown_083C1640[gUnknown_03000704[i]].text;
+                MenuPrint(text, 1 + (i / 2) * 6, 8 + (i % 2) * 2);
+            }
+        }
+        if (gUnknown_03000701 == 5)
+            InitMenu(0, 1, 8, gUnknown_02038564, gUnknown_03000700, 1);
+        else
+            InitMenu(0, 1, 8, gUnknown_02038564, 0, 1);
+        sub_8072DCC(0x2F);
+    }
+    else
+    {
+        MenuDrawTextWindow(0, 5, 13, 12);
+        sub_80A4008(a, 1, 6, 12, 6);
+        for (i = 0; i < gUnknown_02038564; i++)
+            MenuPrint(gUnknown_083C1640[gUnknown_03000704[i]].text, 1 + (i / 3) * 6, 6 + (i % 3) * 2);
+        InitMenu(0, 1, 6, gUnknown_02038564, 0, 1);
+        sub_8072DCC(0x2F);
+    }
+    sub_80A7528(2);
+}
+
+void sub_80A4DA4(u16 *a)
+{
+    sub_80A73FC();
+    sub_80A36B8(a, 0, 6, 13, 6);
+    MenuZeroFillWindowRect(0, 5, 13, 12);
+    sub_80A7590();
+}
+
+void sub_80A4DD8(u8 taskId, u8 b, u8 c, u8 d, u8 e, u8 f)
+{
+    gTasks[taskId].data[1] = 1;
+    gTasks[taskId].data[2] = b + 2;
+    gTasks[taskId].data[3] = c + 1;
+    MenuDrawTextWindow(b, c, b + d, c + e);
+    sub_80A4008(gBGTilemapBuffers[1], b + 1, c + 1, d - 1, e - 1);
+    sub_80A418C(1, 1, b + 2, c + 1, f);
+}
+
+void sub_80A4E8C(s8 a, u8 b)
+{
+    PlaySE(SE_SELECT);
+    sub_80F979C(0, 1);
+    sub_80F979C(1, 1);
+    sub_80F979C(2, 1);
+    sub_80F979C(3, 1);
+    PauseVerticalScrollIndicator(0);
+    PauseVerticalScrollIndicator(1);
+    PauseVerticalScrollIndicator(2);
+    PauseVerticalScrollIndicator(3);
+    sub_80A3B04(gBGTilemapBuffers[2], a);
+    sub_80A3AC0(gBGTilemapBuffers[2], gUnknown_02038559);
+    sub_80A3770();
+    sub_80A7C64();
+    CreateBagPokeballSprite(b);
+}
+
+static bool8 sub_80A4F0C(void)
+{
+    if (gUnknown_03000701 == 5 || gUnknown_03000701 == 4)
+        return FALSE;
+    if (gMain.newKeys == DPAD_RIGHT || sub_80F9284() == 2)
+    {
+        sub_80A4E8C(1, 2);
+        return TRUE;
+    }
+    if (gMain.newKeys == DPAD_LEFT || sub_80F9284() == 1)
+    {
+        sub_80A4E8C(-1, 1);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void sub_80A4F68(u8 taskId)
+{
+    sub_80A4F0C();
+}
+
+bool8 sub_80A4F74(u8 a)
+{
+    bool8 retVal = FALSE;
+    
+    if ((gMain.newAndRepeatedKeys & DPAD_ANY) == DPAD_UP)
+    {
+        if (gUnknown_03005D10[gUnknown_02038559].unk0 != 0)
+            sub_80A4B58(-1, a);
+        else if (gUnknown_03005D10[gUnknown_02038559].unk1 != 0)
+            sub_80A4B14(-1, a);
+        if (gLinkOpen == TRUE && gMain.keyRepeatCounter == 5)
+            gMain.keyRepeatCounter = 11;
+        retVal = TRUE;
+    }
+    else if ((gMain.newAndRepeatedKeys & DPAD_ANY) == DPAD_DOWN)
+    {
+        if (gUnknown_03000701 != 5)
+        {
+            if (gUnknown_03005D10[gUnknown_02038559].unk0 == gUnknown_03005D10[gUnknown_02038559].unk3)
+            {
+                if (gUnknown_03005D10[gUnknown_02038559].unk1 + gUnknown_03005D10[gUnknown_02038559].unk0 != gUnknown_03005D10[gUnknown_02038559].unk2)
+                    sub_80A4B14(1, a);
+            }
+            else
+            {
+                sub_80A4B58(1, a);
+            }
+        }
+        else
+        {
+            if (gUnknown_03005D10[gUnknown_02038559].unk1 + gUnknown_03005D10[gUnknown_02038559].unk0 != gUnknown_03005D10[gUnknown_02038559].unk2 - 1)
+            {
+                if (gUnknown_03005D10[gUnknown_02038559].unk0 != gUnknown_03005D10[gUnknown_02038559].unk3)
+                    sub_80A4B58(1, a);
+                else
+                    sub_80A4B14(1, a);
+            }
+        }
+        retVal = TRUE;
+        if (gLinkOpen == TRUE && gMain.keyRepeatCounter == 5)
+            gMain.keyRepeatCounter = 11;
+    }
+    else
+    {
+        if (gTasks[a].data[10] == 0 && sub_80A4F0C() == TRUE)
+        {
+            sub_80A73F0();
+            gTasks[a].func = sub_80A4F68;
+            retVal = TRUE;
+        }
+        else
+        {
+            sub_80A73C0();
+        }
+    }
+    return retVal;
+}